Sheil--Small[1] discussed the Fourier series of a step function while thisthesis implements a detailed discussion and illustration on the properties of the step func-tions concerned in [1].是什么意思_Sheil--Small[1] discussed the Fourier series of a step function while thisthesis implements a detailed discussion and illustration on the properties of the step func-tions concerned in [1].在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句